Modify the GitHub Actions scripts to accommodate the change in folder structure

[AldoCorbelliniUNIPR]

All the GitHub Action scripts assume that the root folder is ./FSDA, this apparently small detail has to be taken in consideration while doing the transition.

[AldoCorbelliniUNIPR]

The YAML script that compile the documentations pre 2022a still not working.
We think that a YAML debugger would be of great help.